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    <center>Scilab Function</center>
    <div align="right">Last update : April 1993</div>
    <p>
      <b>trianfml</b> -  symbolic triangularization</p>
    <h3>
      <font color="blue">Calling Sequence</font>
    </h3>
    <dl>
      <dd>
        <tt>[f [,sexp]]=trianfml(f [,sexp])  </tt>
      </dd>
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    <h3>
      <font color="blue">Description</font>
    </h3>
    <p>
    Symbolic triangularization of the  matrix <tt>
        <b>f</b>
      </tt> ; triangularization 
    is performed by elementary row operations;
    <tt>
        <b>sexp</b>
      </tt> is a set of common expressions stored by the algorithm.</p>
    <h3>
      <font color="blue">Examples</font>
    </h3>
    <pre>

A=['1','2';'a','b']
W=trianfml([A,string(eye(2,2))])
U=W(:,3:4)
a=5;b=6;
A=evstr(A)
U=evstr(U)
U*A
evstr(W(:,1:2))
 
  </pre>
    <h3>
      <font color="blue">See Also</font>
    </h3>
    <p>
      <a href="addf.htm">
        <tt>
          <b>addf</b>
        </tt>
      </a>,&nbsp;&nbsp;<a href="mulf.htm">
        <tt>
          <b>mulf</b>
        </tt>
      </a>,&nbsp;&nbsp;<a href="solve.htm">
        <tt>
          <b>solve</b>
        </tt>
      </a>,&nbsp;&nbsp;<a href="trisolve.htm">
        <tt>
          <b>trisolve</b>
        </tt>
      </a>,&nbsp;&nbsp;</p>
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